On pe, 12 tammi 2018, Bryce Larson via FreeIPA-users wrote:
We have function that are supposed to be called in a plugin from a post_callback

It's registered with:


The plugin is at /usr/lib/python2.7/site-packages/ipaserver/plugins/csAccount.py

It doesn't seem to be called at all, it used to.  I'm not sure if it
was upgrading from 4.3 to 4.4, or from 4.4 to 4.5 that it stopped
working, but I think it was the upgrade from 4.4 to 4.5.  I'm pretty
sure the pre_callback is still working.

Does anyone know why a post_callback would just stop working after upgrading?
It should be working. Current code to call post callbacks didn't change
for quite few years.


class LDAPCreate:
   def execute(...)
       for callback in self.get_callbacks('post'):
           entry_attrs.dn = callback(
               self, ldap, entry_attrs.dn, entry_attrs, *keys, **options)

Looking at get_callbacks(), it is implemented this way, the code was
moved around in 2016 but it is basically the same as it was before:

   def get_callbacks(cls, callback_type):
       """Yield callbacks of the given type"""
       # Use one shared callback registry, keyed on class, to avoid problems
       # with missing attributes being looked up in superclasses
       callbacks = _callback_registry.get(callback_type, {}).get(cls, [None])
       for callback in callbacks:
           if callback is None:
                   yield getattr(cls, '%s_callback' % callback_type)
               except AttributeError:
               yield callback

where callback type is either 'pre', 'post', or 'exc', so if
pre-callbacks are working, then post-callbacks should work as well
because the are called in the same way.

You can enable server-side debugging (add 'debug=True') to
/etc/ipa/default.conf or to /etc/ipa/server.conf (the latter would
affect only server, the former would affect CLI too).
I just tested this with RHEL 7.4 with the plugin below:

from ipaserver.plugins import user
import logging

def my_post_callback(self, ldap, dn, entry_attrs, *keys, **options):
   logging.error("my_post_callback called with dn={}".format(dn))
   return dn


[root@rh72s ~]# ipa user-add my_foo_bar3
First name: Test
Last name: Bar3
Added user "my_foo_bar3"
 User login: my_foo_bar3
 First name: Test
 Last name: Bar3
 Full name: Test Bar3
 Display name: Test Bar3
 Initials: TB
 Home directory: /home/my_foo_bar3
 GECOS: Test Bar3
 Login shell: /bin/sh
 Principal name: my_foo_b...@t.ipa.cool
 Principal alias: my_foo_b...@t.ipa.cool
 Email address: my_foo_b...@t.ipa.cool
 UID: 129000016
 GID: 129000016
 Password: False
 Member of groups: ipausers
 Kerberos keys available: False

Here is what I've got in the httpd's error_log:

ERROR:root:my_post_callback called with 
[Fri Jan 12 20:49:16.013460 2018] [:error] [pid 7404] ipa: INFO: 
[jsonserver_session] ad...@t.ipa.cool: user_add/1(u'my_foo_bar3', 
givenname=u'Test', sn=u'Bar3', version=u'2.228'): SUCCESS

/ Alexander Bokovoy
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